Question

4.Which of the following cation belongs to Group V ?
a)Cu+2
b) Ba+2
c) Al+3
d) Mg+2​

Answer 1

Answer:

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Answer 2

d) Mg+2 is the correct answer.

1. The group V comprises of cations namely magnesium ion represented by Mg2+, ammonium ion represented by NH4+, sodium ion represented by Na+ and potassium ion represented by K+.
2. These cations are placed in the final group due to their inability to precipitate in the previous groups' precipitation methods.
3. Cations are the positively charge ions that are attracted to anions.